2006 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
We reserve the right to change specifications without prior notice
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19
Electrical / Environmental
• Operating Temperature Range -40°C to +155°C
• Ambient Temperature, Maximum 100°C
• Temperature Rise, Maximum 50°C
• Insulation System Class F, 155°C
Shielded Drum Compact Package Low Cost Inductors
Specifications
Notes: (1) Rate current, Irated, is the approximate DC current at which inductance will be decreased by 20% from its initial (zero DC) value or the
current at which ∆T = 50°C, whichever is lower.
(2) Isat is the saturation current at which inductance rolls off approximately 30% from its initial value.
(3) DC resistance is measured at 25°C.
Inductance
100 kHz 100 kHz, 0.1 V
Part @ 0 Adc @ Irated Irated (1) Isat (2) DCR (3) Dim D. Dim. E
Number µH ±10% µH Min. µH Typ. (Adc) (Adc) mΩ ±5% (mm ±0.5) (mm ±0.1) Fig.
HM55-12R40 0.40 0.32 0.35 20 29 1.00 8.76 1.30 2
HM55-14R40 0.40 0.32 0.35 15 38 1.75 8.40 1.00 2
HM55-21R43 0.43 0.36 0.40 18 27 0.77 4.10 1.30 1
HM55-21R95 0.95 0.76 0.84 22.5 33 1.28 6.90 1.30 1
HM55-211R3 1.38 1.10 1.25 15 22 2.26 6.60 1.05 1
HM55-22R79 0.79 0.56 0.63 27 39 1.20 12.5 1.45 2
HM55-24R28 0.28 0.21 0.25 30 85 0.72 12.7 1.30 2
HM55-26R50 0.50 0.36 0.40 40 50 0.90 12.7 1.50 2
HM55-311R4 1.40 1.08 1.20 35 50 0.98 6.60 1.65 1
HM55-313R0 3.00 2.43 2.70 21 30 2.60 9.45 1.30 1
HM55-315R6 5.60 4.86 5.40 9 14 7.30 7.11 0.91 1
HM55-321R0 1.0 0.72 0.80 40 56 1.25 15.24 1.50 2
Figure 1 Figure 2
Outline Dimensions (Inch/mm)
Case Size Fig. A B C
12 2 .295 .295 .433
7.50 7.50 11.0
14 2 .295 .295 .295
7.50 7.50 7.50
21 1 .413 .433 .413
10.5 11.0 10.5
22 2 .413 .413 .413
10.5 10.5 10.5
24 2 .413 .413 .295
10.5 10.5 7.50
26 2 .413 .413 .355
10.5 10.5 9.00
31 1 .532 .543 .532
13.5 13.8 13.5
32 2 .532 .532 .492
13.5 13.5 12.5
Notes: (A) Refer to Specifications table for
‘D’ & ‘E’ dimensions of each model.
(B) For case size 12 & 14, only BI logo &
datecode will be printed.
RoHS
Compliant for
‘LF’ Models
BI XXRXX
YYW W
Packaging
Standard: Vacuum Tray
Case Size Capacity Per Tray Capacity Per Carton
(Units) (Units)
12, 14, 21 40 560
22 44 660
24 50 600
26 45 630
31, 32 44 572
US 6,847,280
BI XXRXX
YYW W
Refer to Note (B)
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MAGNETIC COMPONENTS SELECTOR GUIDE 2006 EDITION
We reserve the right to change specifications without prior notice.
20
Electrical Characteristics @ 25°C
(A) Case size 12, 14, 21, 22 & 24
2006 EDITION MAGNETIC COMPONENTS SELECTOR GUIDE
We reserve the right to change specifications without prior notice
www.bitechnologies.com
21
Ordering Information
Electrical Characteristics @ 25°C (Cont’d)
(B) Case size 26, 31 & 32
Inductance Code:
First 2 digits are significant. Last
digit denotes the number of trailing
zeros. For values below 10µH, ”R”
denotes the decimal point.
Case Size:
12 = Figure 2 24 = Figure 2
14 = Figure 2 26 = Figure 2
21 = Figure 1 31 = Figure 1
22 = Figure 2 32 = Figure 2
Model Series
HM55 21 1R3 LF
Lead-Free Option:
LF= Lead-Free
(No code used for
non lead-free part)
